From owner-freebsd-net@freebsd.org Fri Nov 30 11:06:27 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9E06B1140046 for ; Fri, 30 Nov 2018 11:06:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 1D4AB7C91D for ; Fri, 30 Nov 2018 11:06:27 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id D2A021140045; Fri, 30 Nov 2018 11:06:26 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C0EF51140044 for ; Fri, 30 Nov 2018 11:06:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5D2237C91C for ; Fri, 30 Nov 2018 11:06:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 89ED0E12B for ; Fri, 30 Nov 2018 11:06:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id wAUB6P9W094588 for ; Fri, 30 Nov 2018 11:06:25 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id wAUB6PrU094587 for net@FreeBSD.org; Fri, 30 Nov 2018 11:06:25 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 227720] Kernel panic in ppp server Date: Fri, 30 Nov 2018 11:06:24 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.1-RELEASE X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: ae@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: mfc-stable11? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Rspamd-Queue-Id: 1D4AB7C91D X-Spamd-Result: default: False [1.88 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_SPAM_LONG(0.57)[0.567,0]; NEURAL_SPAM_MEDIUM(0.71)[0.714,0]; ASN(0.00)[asn:10310, ipnet:2001:1900:2254::/48, country:US]; NEURAL_SPAM_SHORT(0.60)[0.602,0] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Nov 2018 11:06:27 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227720 --- Comment #46 from Andrey V. Elsukov --- (In reply to Franck Rousseau from comment #43) > #13 0xffffffff80c24da4 in sysctl_dumpentry (rn=3D0xfffff80008954410, > vw=3D0xfffffe0467edd690) > at /usr/src/sys/net/rtsock.c:1559 > 1559 info.rti_info[RTAX_IFP] =3D rt->rt_ifp->if_addr->ifa_addr; > (kgdb) print rt->rt_ifp->if_addr=20 > $1 =3D (struct ifaddr *) 0x0 > (kgdb) print rt->rt_ifp->if_flags > $2 =3D 0 > (kgdb) print rt->rt_ifp->if_index > $3 =3D 0 > (kgdb) print rt->rt_ifp=20=20=20=20=20=20=20=20=20=20 > $4 =3D (struct ifnet *) 0xfffff8002be6c800 > (kgdb) print *rt->rt_ifp > $5 =3D {if_link =3D {tqe_next =3D 0xfffff800b0cfe050, tqe_prev =3D > 0xfffff800b0cfe0a0}, if_clones =3D {le_next =3D 0x0,=20 > le_prev =3D 0x0}, if_groups =3D {tqh_first =3D 0x0, tqh_last =3D 0x0}, > if_alloctype =3D 0 '\0', if_softc =3D 0x0,=20 > if_llsoftc =3D 0x0, if_l2com =3D 0x0, if_dname =3D 0x0, if_dunit =3D 0,= if_index =3D > 0, if_index_reserved =3D 0,=20 > if_xname =3D 0xfffff8002be6c860 "", if_description =3D 0x0, if_flags = =3D 0, > if_drv_flags =3D 0,=20 Ok, it seems all was correctly patched and the problem is because we have garbage in the ifnet pointer. --=20 You are receiving this mail because: You are the assignee for the bug.=